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yaml
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r: 104802
b: refs/heads/master
c: ade254d
h: refs/heads/master
v: v3
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Jochen Friedrich authored and Kumar Gala committed Jul 16, 2008
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2 changes: 1 addition & 1 deletion [refs]
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refs/heads/master: 89ae5b2b9357cd715ab25df50e5fa56ae30aaf80
refs/heads/master: ade254d7f05cb74ab0a951ab105bc9ae872f045e
38 changes: 38 additions & 0 deletions trunk/Documentation/powerpc/dts-bindings/fsl/cpm_qe/gpio.txt
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Every GPIO controller node must have #gpio-cells property defined,
this information will be used to translate gpio-specifiers.

On CPM1 devices, all ports are using slightly different register layouts.
Ports A, C and D are 16bit ports and Ports B and E are 32bit ports.

On CPM2 devices, all ports are 32bit ports and use a common register layout.

Required properties:
- compatible : "fsl,cpm1-pario-bank-a", "fsl,cpm1-pario-bank-b",
"fsl,cpm1-pario-bank-c", "fsl,cpm1-pario-bank-d",
"fsl,cpm1-pario-bank-e", "fsl,cpm2-pario-bank"
- #gpio-cells : Should be two. The first cell is the pin number and the
second cell is used to specify optional paramters (currently unused).
- gpio-controller : Marks the port as GPIO controller.

Example of three SOC GPIO banks defined as gpio-controller nodes:

CPM1_PIO_A: gpio-controller@950 {
#gpio-cells = <2>;
compatible = "fsl,cpm1-pario-bank-a";
reg = <0x950 0x10>;
gpio-controller;
};

CPM1_PIO_B: gpio-controller@ab8 {
#gpio-cells = <2>;
compatible = "fsl,cpm1-pario-bank-b";
reg = <0xab8 0x10>;
gpio-controller;
};

CPM1_PIO_E: gpio-controller@ac8 {
#gpio-cells = <2>;
compatible = "fsl,cpm1-pario-bank-e";
reg = <0xac8 0x18>;
gpio-controller;
};

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